X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frt_computation%2Ffpbs.ma;h=f7437d26db043bb4702af1512cf983e01018ae78;hp=8aa6dba6d9cbe812ba9bf248e025fb4cb6777786;hb=e23331eef5817eaa6c5e1c442d1d6bbb18650573;hpb=b118146b97959e6a6dde18fdd014b8e1e676a2d1 diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/fpbs.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/fpbs.ma index 8aa6dba6d..f7437d26d 100644 --- a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/fpbs.ma +++ b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/fpbs.ma @@ -14,39 +14,22 @@ include "ground/lib/star.ma". include "basic_2/notation/relations/predsubtystar_6.ma". -include "static_2/static/reqx.ma". -include "basic_2/rt_transition/fpbq.ma". +include "basic_2/rt_transition/fpb.ma". (* PARALLEL RST-COMPUTATION FOR CLOSURES ************************************) definition fpbs: tri_relation genv lenv term ≝ - tri_TC … fpbq. + tri_TC … fpb. interpretation "parallel rst-computation (closure)" 'PRedSubTyStar G1 L1 T1 G2 L2 T2 = (fpbs G1 L1 T1 G2 L2 T2). -(* Basic eliminators ********************************************************) - -lemma fpbs_ind: - ∀G1,L1,T1. ∀Q:relation3 genv lenv term. Q G1 L1 T1 → - (∀G,G2,L,L2,T,T2. ❪G1,L1,T1❫ ≥ ❪G,L,T❫ → ❪G,L,T❫ ≽ ❪G2,L2,T2❫ → Q G L T → Q G2 L2 T2) → - ∀G2,L2,T2. ❪G1,L1,T1❫ ≥ ❪G2,L2,T2❫ → Q G2 L2 T2. -/3 width=8 by tri_TC_star_ind/ qed-. - -lemma fpbs_ind_dx: - ∀G2,L2,T2. ∀Q:relation3 genv lenv term. Q G2 L2 T2 → - (∀G1,G,L1,L,T1,T. ❪G1,L1,T1❫ ≽ ❪G,L,T❫ → ❪G,L,T❫ ≥ ❪G2,L2,T2❫ → Q G L T → Q G1 L1 T1) → - ∀G1,L1,T1. ❪G1,L1,T1❫ ≥ ❪G2,L2,T2❫ → Q G1 L1 T1. -/3 width=8 by tri_TC_star_ind_dx/ qed-. (* Basic properties *********************************************************) -lemma fpbs_refl: - tri_reflexive … fpbs. -/2 width=1 by tri_inj/ qed. - -lemma fpbq_fpbs: +(* Basic_2A1: uses: fpbq_fpbs *) +lemma fpb_fpbs: ∀G1,G2,L1,L2,T1,T2. ❪G1,L1,T1❫ ≽ ❪G2,L2,T2❫ → ❪G1,L1,T1❫ ≥ ❪G2,L2,T2❫. /2 width=1 by tri_inj/ qed. @@ -61,28 +44,6 @@ lemma fpbs_strap2: ❪G,L,T❫ ≥ ❪G2,L2,T2❫ → ❪G1,L1,T1❫ ≥ ❪G2,L2,T2❫. /2 width=5 by tri_TC_strap/ qed-. -(* Basic_2A1: uses: lleq_fpbs fleq_fpbs *) -lemma feqx_fpbs: - ∀G1,G2,L1,L2,T1,T2. ❪G1,L1,T1❫ ≅ ❪G2,L2,T2❫ → ❪G1,L1,T1❫ ≥ ❪G2,L2,T2❫. -/3 width=1 by fpbq_fpbs, fpbq_feqx/ qed. - -(* Basic_2A1: uses: fpbs_lleq_trans *) -lemma fpbs_feqx_trans: - ∀G1,G,L1,L,T1,T. ❪G1,L1,T1❫ ≥ ❪G,L,T❫ → - ∀G2,L2,T2. ❪G,L,T❫ ≅ ❪G2,L2,T2❫ → ❪G1,L1,T1❫ ≥ ❪G2,L2,T2❫. -/3 width=9 by fpbs_strap1, fpbq_feqx/ qed-. - -(* Basic_2A1: uses: lleq_fpbs_trans *) -lemma feqx_fpbs_trans: - ∀G,G2,L,L2,T,T2. ❪G,L,T❫ ≥ ❪G2,L2,T2❫ → - ∀G1,L1,T1. ❪G1,L1,T1❫ ≅ ❪G,L,T❫ → ❪G1,L1,T1❫ ≥ ❪G2,L2,T2❫. -/3 width=5 by fpbs_strap2, fpbq_feqx/ qed-. - -lemma teqx_reqx_lpx_fpbs: - ∀T1,T2. T1 ≅ T2 → ∀L1,L0. L1 ≅[T2] L0 → - ∀G,L2. ❪G,L0❫ ⊢ ⬈ L2 → ❪G,L1,T1❫ ≥ ❪G,L2,T2❫. -/4 width=5 by feqx_fpbs, fpbs_strap1, fpbq_lpx, feqg_intro_dx/ qed. - (* Basic_2A1: removed theorems 3: fpb_fpbsa_trans fpbs_fpbsa fpbsa_inv_fpbs *)